在QtCreator中從QInputDialog獲取多個輸入

Question

我想從QtCreator中的四個輸入標籤獲得一組四個值。我想使用QInputDialog，但它只包含一個inputbox作爲默認值。那麼，如何添加四個標籤和四行編輯並從中獲得價值？

Answer 1

你沒有。該文檔是相當清楚的：

的QInputDialog類提供了一個簡單方便的對話框，獲得來自用戶的 單值。

如果您想要多個值，請創建一個QDialog派生類，從頭開始，使用4個輸入字段。

例如：

QDialog dialog(this); 
// Use a layout allowing to have a label next to each field 
QFormLayout form(&dialog); 

// Add some text above the fields 
form.addRow(new QLabel("The question ?")); 

// Add the lineEdits with their respective labels 
QList<QLineEdit *> fields; 
for(int i = 0; i < 4; ++i) { 
    QLineEdit *lineEdit = new QLineEdit(&dialog); 
    QString label = QString("Value %1").arg(i + 1); 
    form.addRow(label, lineEdit); 

    fields << lineEdit; 
} 

// Add some standard buttons (Cancel/Ok) at the bottom of the dialog 
QDialogButtonBox buttonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, 
          Qt::Horizontal, &dialog); 
form.addRow(&buttonBox); 
QObject::connect(&buttonBox, SIGNAL(accepted()), &dialog, SLOT(accept())); 
QObject::connect(&buttonBox, SIGNAL(rejected()), &dialog, SLOT(reject())); 

// Show the dialog as modal 
if (dialog.exec() == QDialog::Accepted) { 
    // If the user didn't dismiss the dialog, do something with the fields 
    foreach(QLineEdit * lineEdit, fields) { 
     qDebug() << lineEdit->text(); 
    } 
}